/**
 * @(#)AbstractTypeInfo.java	0.1 Nov 6, 2007
 *
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.wideskill.rpg4ejb3.type;

import java.lang.annotation.Annotation;
import java.util.Iterator;

/**
 * @author: Luigi Scarpato <luigi.scarpato at wideskill.com>
 * 
 */
public abstract class AbstractTypeInfo<P extends Annotation, C extends Annotation> {

	public abstract Iterator<? extends AbstractType<C>> getColumnTypeIterator();

	@SuppressWarnings("unchecked")
	protected final <A extends Annotation> AbstractType<A> createType(
			Annotation[] annotations) {
		try {
			for (Annotation annotation : annotations) {
				BrandType a = annotation.annotationType().getAnnotation(BrandType.class);
				if (a == null)
					continue;

				Class<? extends AbstractType<A>> abstractTypeClass = (Class<? extends AbstractType<A>>) a.value();

				AbstractType<A> abstractType = abstractTypeClass.newInstance();
				abstractType.initialize((A) annotation);

				return abstractType;
			}
		} catch (Exception e) {
			throw new IllegalArgumentException(
					"could not instantiate the Class AbstractType", e);
		}

		return null;
	}
}
